Key information relevant to the recruitment process for the
overall study, such as dates of the recruitment period and locations

Healthy volunteers were recruited from the Denver metro area between March 2008 and September 2009.

Pre-Assignment Details

Significant events and approaches for the overall study
following participant enrollment, but prior to group assignment

Participants were genetically screened for solute carrier organic anion transporter family, member 1B1 (SLCO1B1) diplotypes as follows: Group 1, *1A/*1A (reference diplotype); Group 2, *1A/*1B or *1B/*1B diplotypes; and Group 3, subjects with at least one copy of the *5, *15, or *17 haplotype.

Reporting Groups

Description

SLCO1B1 Group 1

SLCO1B1 *1A/*1A diplotype; Pravastatin 40 mg by mouth daily on days 1-4, washout on days 5-11, darunavir/ritonavir 600/100 mg by mouth twice daily on days 12-18, with pravastatin 40 mg added back on days 15-18

SLCO1B1 Group 2

SLCO1B1 *1A/*1B or *1B/*1B diplotype; Pravastatin 40 mg by mouth daily on days 1-4, washout on days 5-11, darunavir/ritonavir 600/100 mg by mouth twice daily on days 12-18, with pravastatin 40 mg added back on days 15-18.

SLCO1B1 Group 3

Carriers of at least one SLCO1B1 *5, *15, or *17 haplotype; Pravastatin 40 mg by mouth daily on days 1-4, washout on days 5-11, darunavir/ritonavir 600/100 mg by mouth twice daily on days 12-18, with pravastatin 40 mg added back on days 15-18

Limitations of the study, such as early termination leading to small numbers of participants
analyzed and technical problems with measurement leading to unreliable or uninterpretable data

The study included only heterozygous carriers of the SLCO1B1 *15 and *17 haplotypes. Pravastatin urine concentrations were not measured; therefore the impact of darunavir/ritonavir on pravastatin renal clearance was not assessed in this population.

Principal Investigators are NOT employed by the organization sponsoring the study.

There IS an agreement between Principal Investigators and the Sponsor (or its agents) that restricts
the PI's rights to discuss or publish trial results after the trial is completed.

The agreement is:

The only disclosure restriction on the PI is that the sponsor can review results communications prior to public release
and can embargo communications regarding trial results for a period that is less than or equal to 60 days.
The sponsor cannot require changes to the communication and cannot extend the embargo.

The only disclosure restriction on the PI is that the sponsor can review results communications prior to public release
and can embargo communications regarding trial results for a period that is more than 60 days but less than
or equal to 180 days. The sponsor cannot require changes to the communication and cannot extend the embargo.

Other disclosure agreement that restricts the right of the PI to discuss or publish trial results after the trial is completed.

Restriction Description:
Prior to publication or presentation, the PI will provide the sponsor with at least 60 days for review of a manuscript